Answer to Question #65774 in Physical Chemistry for muhd

Question

Question 3 : A reaction with a negative value of
Δ
G
ΔG is said to be
Reversible
At equilibrium
Spontaneous
Non-spontaneous
Question 4 : Of the following product-favoured processes, which are endothermic? 1. the combustion of methane to produce water and carbon dioxide. 2. the expansion of an ideal gas. 3. the melting of ice at temperatures greater than 0ºC.
2 only
2 and 3
3 only
1 only

Answer 1

Question 3: If ΔG negative, the process occurs spontaneously and can proceed in the forward direction. So the correct answer: spontaneous.

Question 4: Endothermic process - these are processes that take place with absorption of heat. So the correct answer: the expansion of an ideal gas and the melting of ice at temperatures greater than 0 or 2 and 3.

Answer: Question 3: spontaneous;
Question 4: 2 and 3.